Great game and the graphics are great! The only problem I had with it was that it is a bit slow, so far the only way to "speed it up" is pressing the "Send more enemies" button, but if your quest is too get more materials, more people, ect. pressing the button will slow you down instead of speeding you up, and when you die in a long run its annoying. I would recommend making something that can change the speed of everything, like sims 4 does.
I hope you consider this.